Alert archive / Florida / Tornado Warnings in 2012

Tornado Warning 68, NWS Tallahassee, FL

December 25, 2012Walton County, Florida

NWS Tallahassee, FL issued this tornado warning at Dec 25, 2012, 2:29 PM CST for Walton County, Florida. It was in force for 46 min. No storm report in the archive falls inside the area while it was in force.

The area

The outline as issued.

The facts

Issued: Dec 25, 2012, 2:29 PM CST (20:29 UTC)
Expired: Dec 25, 2012, 3:15 PM CST
In force: 46 min
Issued by: NWS Tallahassee, FL
Area: Storm-based polygon

County Walton County, FL

The radar

The Eglin Afb radar (KEVX), 36 km from the middle of the area, began a volume at 20:32 UTC, the scan nearest the moment this went out.

Open the radar archive at this moment

The archived warnings, watches and discussions in force at that minute are drawn over the scan, this one among them.

The nearest sounding before it

Tallahassee Rgnl, FL (KTLH), launched 12:00Z, 8.5 hours before the alert went out and 188 km from the middle of its area. This is the routine balloon launch nearest before it, the air the forecaster had in hand, not a measurement taken for the alert.

Skew-T log-p

Temperature in red, dew point in green, the mixed-layer parcel dashed.

Hodograph

The wind turning with height, colored by layer: ground to 1 km, 1 to 3 km, 3 to 6 km, 6 to 10 km.

Mixed-layer CAPE: 212 J/kg
Mixed-layer CIN: -11 J/kg
Mixed-layer LCL: 448 m above ground
0-6 km bulk shear: 35 kt
0-1 km storm-relative helicity: 60 m²/s²
0-3 km storm-relative helicity: 64 m²/s²
Significant tornado parameter: 0.0
Supercell composite: 0.2

Open this sounding in Storm Lab

The text

As transmitted, in the capitals the NWS used until 2016.

764 
WFUS52 KTAE 252029
TORTAE
FLC131-252115-
/O.NEW.KTAE.TO.W.0068.121225T2029Z-121225T2115Z/

BULLETIN - EAS ACTIVATION REQUESTED
TORNADO WARNING
NATIONAL WEATHER SERVICE TALLAHASSEE FL
229 PM CST TUE DEC 25 2012

THE NATIONAL WEATHER SERVICE IN TALLAHASSEE HAS ISSUED A

* TORNADO WARNING FOR...
  SOUTHERN WALTON COUNTY IN THE PANHANDLE OF FLORIDA...

* UNTIL 315 PM CST

* AT 223 PM CST...A DEVELOPING TORNADO HAS BEEN DETECTED BY THE      
  NATIONAL WEATHER SERVICE 14 MILES SOUTH OF SANTA ROSA              
  BEACH...MOVING NORTHEAST AT 30 MPH.

* OTHER LOCATIONS IN THE WARNING INCLUDE BUT ARE NOT LIMITED TO      
  MIRAMAR BEACH...SANDESTIN...CHOCTAW BEACH...PORT                   
  WASHINGTON...AND   FREEPORT.

PRECAUTIONARY/PREPAREDNESS ACTIONS...

TAKE COVER NOW! LEAVE MOBILE HOMES AND VEHICLES FOR SAFER STRUCTURES.
MOVE TO A HALLWAY OR CLOSET ON THE LOWEST FLOOR AWAY FROM WINDOWS AND
OUTSIDE WALLS.

&&

LAT...LON 3062 8640 3049 8596 3029 8606 3038 8640
      3040 8640 3040 8634 3043 8632 3041 8629
      3043 8627 3043 8624 3039 8615 3039 8613
      3047 8621 3048 8627 3045 8640
TIME...MOT...LOC 2028Z 210DEG 26KT 3023 8629

$$

15-HARRIGAN

1 follow-up statement

247 
WWUS52 KTAE 252054
SVSTAE

SEVERE WEATHER STATEMENT
NATIONAL WEATHER SERVICE TALLAHASSEE FL
254 PM CST TUE DEC 25 2012

FLC131-252115-
/O.CON.KTAE.TO.W.0068.000000T0000Z-121225T2115Z/
WALTON FL-
254 PM CST TUE DEC 25 2012

...A TORNADO WARNING REMAINS IN EFFECT UNTIL 315 PM CST FOR SOUTHERN
WALTON COUNTY...

AT 250 PM CST...TRAINED WEATHER SPOTTERS REPORTED A LOWERING FUNNEL 
CLOUD. THE POSSIBLE TORNADO WAS LOCATED NEAR BLUE MOUNTAIN 
BEACH...MOVING NORTHEAST AT 30 MPH.

OTHER LOCATIONS IN THE WARNING INCLUDE BUT ARE NOT LIMITED TO
PORTLAND AND FREEPORT

PRECAUTIONARY/PREPAREDNESS ACTIONS...

RELAY REPORTS OF SEVERE WEATHER TO THE NATIONAL WEATHER SERVICE IN
TALLAHASSEE AT (8 5 0) 9 4 2 8 8 3 3. OR...YOU MAY CONTACT THE
NEAREST LAW ENFORCEMENT AGENCY OR YOUR COUNTY EMERGENCY MANAGEMENT.
THEY WILL RELAY YOUR REPORT TO THE NATIONAL WEATHER SERVICE.

&&

LAT...LON 3059 8631 3049 8596 3033 8619 3036 8629
      3041 8629 3043 8627 3043 8624 3039 8615
      3039 8613 3047 8621 3048 8627 3047 8629
TIME...MOT...LOC 2053Z 210DEG 26KT 3039 8618

$$

15-HARRIGAN

The office that day

Everything else NWS Tallahassee, FL issued on the same UTC day.

Issued	Product	Office	Counties	Lasted
Dec 24, 9:22 PM CST	Dense Fog Advisory	TAE	Bay, Calhoun, Franklin, Gadsden, Gulf, Holmes and 7 more	12 hr
Dec 25, 2:48 AM CST	Rip Current Statement	TAE	Bay, Franklin, Gulf, Walton	39 hr
Dec 25, 2:48 AM CST	High Surf Advisory	TAE	Bay, Gulf, Walton	39 hr
Dec 25, 4:47 AM CST	Gale Warning	TAE		31 hr
Dec 25, 4:47 AM CST	Small Craft Advisory	TAE		45 hr
Dec 25, 1:54 PM CST	Special Marine Warning	TAE		66 min
Dec 25, 4:49 PM CST	Tornado Warning	TAE	Walton	26 min
Dec 25, 5:07 PM CST	Tornado Warning	TAE	Walton	38 min

Nearby

Tornado Warnings in Florida, 2012 Every tornado warning in 2012 Tornadoes in 2012

Sources

The product and its follow-ups from the Iowa Environmental Mesonet's archive of National Weather Service and Storm Prediction Center text; the sounding from the Mesonet's radiosonde archive; radar from the NEXRAD Level II archive.